TWO WEEKS, $5 MILLION

CONDÉ Nast spent a whopping $5 million to renovate the old Hard Rock space on West 57th Street and replace it with the “pop-up” Bon Appetit restaurant that was open for just two weeks, said a source. The beautiful eatery, open from Oct. 25 until Nov. 2, had strands of mirrors hanging from the ceiling, long white tables and a fully loaded kitchen. “The Hard Rock was in deplorable condition,” said a Condé Nast rep. “We had to paint, rip out wood paneling, all the lighting had to be changed and the kitchen was only in semi-working order. I don’t have an exact figure, but we are a privately owned company that does not give that in formation out.” The last party held there was an after-bash for “Saturday Night Live.”